Surveil 2. You gain 2 life. If this spell was cast from a graveyard, exile it, then put it onto the battlefield transformed under its owner's control with a finality counter on it. (If a creature with a finality counter on it would die, exile it instead.) Flashback {3}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Reveal the top card of your library. If it's a permanent card, put it into your hand. II — Add {G}{G}. III — Other creatures you control get +2/+2 and gain trample until end of turn.
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